In the past, there was just one choice of data from the Census Bureau to get the statistics that you or your customer needed. But that’s changed: beginning in December 2010/January 2011, you will have a choice of five sets of Census data.

This guide gives users the basic information that is needed to get the most out of the American Community Survey (ACS) data available on the Census Bureau website. It details information as “period of time” data versus “point of time” data,...